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12V Water Pressure Diaphragm Pump 3.8LPM 40PSI Self-Priming Water Pump for RV Caravan Marine Camping
Caravan Accessories

12V Water Pressure Diaphragm Pump 3.8LPM 40PSI Self-Priming Water Pump for RV Caravan Marine Camping

$44.99

RRP $48.99

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12V Water Pressure Diaphragm Pump – 3.8LPM, 40PSI

Designed for reliable water delivery in RVs, caravans, boats, camping setups and other compact water systems, this 12V diaphragm pump provides consistent water pressure with automatic on-demand operation.

With a built-in 40 PSI pressure switch, the pump automatically starts when water is required and stops when the desired pressure is reached. Its self-priming design allows flexible installation and can operate even when mounted above the water tank.

Key Features

  • 12V DC Operation: Suitable for a range of mobile and off-grid water systems.
  • 3.8LPM Flow Rate: Delivers up to 1.0 gallon per minute for everyday water supply applications.
  • 40 PSI Maximum Pressure: Provides consistent water pressure for suitable low-volume water systems.
  • Self-Priming Design: Supports up to 1.2m of suction lift, allowing the pump to be installed above the water tank.
  • Automatic On-Demand Operation: Built-in pressure switch automatically starts and stops the pump according to water demand.
  • Dry-Run Capability: Designed to operate without water for added installation flexibility.
  • Thermal Protection: Built-in thermal protector helps protect the motor during operation.
  • Compact Design: Space-saving construction makes it suitable for compact installations.
  • Quiet Operation: Designed to provide reliable water pumping with reduced operating noise.
  • Standard Mounting Pattern: Suitable for common installation configurations.

Specifications

Pump Type 2-Chamber Positive Displacement Diaphragm Pump

Voltage 12V DC

Flow Rate 3.8LPM / 1.0 GPM

Maximum Pressure 40 PSI / 2.8 bar

Priming Capability Up to 1.2m / 4ft suction lift

Inlet / Outlet 3/8 Hose Barb

Maximum Recommended Temperature 43°C / 110°F

Weight Approx. 0.57kg / 1.25lb

Power Leads 18 AWG, approx. 35cm, with 2-pin connector

Duty Cycle Intermittent

Suitable Applications

  • RV and caravan water systems
  • Marine and boat applications
  • Camping and portable water systems
  • Water treatment and RO systems
  • Beverage and food service equipment
  • Distillation equipment
  • Agricultural spraying
  • Automotive applications
  • General industrial water systems

Package Contents

  • 1 × 12V Water Pressure Diaphragm Pump

Note: Please confirm the pump specifications, connection size and electrical requirements are suitable for your intended application before purchase. Product colour may vary slightly due to lighting and screen settings. Manual measurements may have a tolerance of approximately ±1–3cm.